Patent · US Active

Vacuum cleaner and method for cleaning a filter

US9585533B2 · kind B2 · utility

4Cited by

2References

17Claims

0Family size

Assignee

Alfred Kärcher GmbH & Co. KG · DE

Inventors

Maic Hensel · Backnang, DE
Frank Fuchs · Rutesheim, DE
Julien Scholl · Waiblingen, DE

Key dates

Filing date	Aug 8, 2013
Grant date	Mar 7, 2017
Priority date	—
Expiry date	Apr 10, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K17/042
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A vacuum cleaner is provided, including a suction inlet, a dirt collection container, a filter device, a suction conduit, a suction unit, wherein the dirt collection container is in flow communication with the suction unit via the filter device and the suction conduit and wherein the filter device has a negative pressure applied to it by the suction unit, and including an external air valve device, wherein the filter device is capable of having external air applied thereto on the clean side thereof via the external air valve device and wherein for cleaning the filter device the external air valve device is capable of being brought from a closed valve position to an open valve position and back again from the open valve position to a closed valve position, characterized by a battery device for supplying energy to the external air valve device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.